My car's paintwork has been damaged by parking under a leaking air conditioning duct. The car is now covered in a hardened chalky coloured martial , a bit like limestone.
It came off the windows OK using a stanley knife blade but I can't shift it off the paintwork. So far I've tried soap, petrol, white spirit, T cut, polish, vinegar and Cillit Bang.
Any other suggestions????
Thanks
Peter
Was it your air conditioning unit or someone elses? If it is someone else's you have good grounds for recovering your costs. uk.legal have a few informed people.
Failing that I'd try paint stripper and paint ;)
Meguiar's Quik Clay?
Decent cutting compound such as Farecla G3 (try your local vehicle paint factor) on an electric polishing mop. Keep it wet! Messy, but should shift anything.
Very longshot but have you tried soaking some kitchen paper in something and just leaving it for a while? It's what I do with the most hardened of bird shit, not the same think I know, and I'm not sure what it might do to surrounding paintwork but it might be worth a try?
cheers, Paul
Might be a daft question - how long was it parked up to end up with this level of damage ?
If it is a chalky substance then you should be able to dissolve it off with a weak acid such as vinegar or the stuff they sell in builders' merchants for removing mortar stains. But it won't just come off by rubbing it with this liquid. You'll have to arrange for it to dissolve off - perhaps soak a cloth in it and leave it in a lump on the chalky bit. I doubt if you'll affect the paint tho' I wouldn't swear on it.
Rob Graham
Just watch you don't get the hydrofluoric acid that is sold as mortar stain remover. I'd imagine it would strip your paint right off considering what it does to block paving!!
In message , Frank writes
Handling HF without the correct precautions, the damage to your paintwork is the least of your worries. It's a remarkably unpleasant substance, and unpleasant in ways that more commonly used acids aren't.
Actually, I thought mortar stain remover was hydrochloric, not hydrofluoric, but I may be wrong. Whatever it is, anyone can buy it. I've never had any problems with it. And because it might dissolve block paving doesn't mean that it would necessarily dissolve paint.
Rob
A bit more info
Try useing CLR it will take off calcium , lime and rust that should do the trick!!!
Removes calcium deposits from glassware, decanters and tea or coffee pots. Instantly removes lime scales from coffeemakers, humidifiers, tubs, toilets and sinks. Instantly removes rust stains from brick, stucco, porcelain, chrome and metal. This CLR Industrial Strength Cleaner is one of many top quality items in our Mineral Deposit Remover department
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